http://www.cnr.it/ontology/cnr/individuo/prodotto/ID33219
On-line CE-MS using pressurized liquid junction nanoflow electrospray interface and surface-coated capillaries. (Articolo in rivista)
- Type
- Label
- On-line CE-MS using pressurized liquid junction nanoflow electrospray interface and surface-coated capillaries. (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/elps.200600322 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Salvatore Fanali (1); Giovanni D'Orazio (1); Frantisek Foret (2); Karel Kleparnik (2); Zeineb Aturki (1) (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Google Scholar (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1) Istituto di Metodologie Chimiche; Istituto di Metodologie Chimiche; Institute of Analytical Chemistry, Academy of Sciences Czech Republic;
2) Institute of Analytical Chemistry, Academy of Sciences Czech Republic; (literal)
- Titolo
- On-line CE-MS using pressurized liquid junction nanoflow electrospray interface and surface-coated capillaries. (literal)
- Abstract
- A simple and cost-effective laboratory-made liquid junction interface was used for coupling of CE with MS. In this device the capillary column and the spray tip were positioned in the electrode vessel containing appropriate spray liquid. The electrospray potential was applied on the electrode inside the liquid junction. A stable electrospray was produced at nanoliter per minute flow rates generated in the emitter tip without using an external pump. This arrangement provided high durability of the spray tip and independent optimization of the CE separation (use of coated capillaries) and ESI conditions. CE-MS analysis of mixtures of drugs, peptides, tryptic digests of proteins and biological fluids was optimized with respect to the effects of the distance between the separation capillary and electrospray tip and pressure applied on the liquid junction. The sensitivity of the system, in terms of the LOD (base peak monitoring) was below 10 ng/mL for the beta-blocker drugs and below 200 ng/mL for peptide
analysis. (literal)
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